Soak noodles according to directions for stir-fry; drain.
In a large skillet or wok heat oil over medium heat. Add garlic and stir-fry until light brown. Add onions, tomatoes, red bell pepper and green beans; continue to stir-fry over medium heat 1-2 minutes.
Stir in noodles. Add lime juice, garlic chili pepper sauce, soy sauce, brown sugar and salt stirring continuously until noodles are firm but tender.